Also about the zoom option, it is necessary zoom tool selected frame. I do not know if you. I understand, but it is very powerful and very little on the displays.
Only have that option Cad design software, as seen in this picture.

Many friends ask me about using other browsers and price, but I recommend Xnview and tell me that that option is missing.
This option is useful when you require a zoom into specific areas of the image.
I am dedicated to graphic design and software installation and configuration of windows and linux pc.
I configure the pc with xnview as default browser.
luck and success in your projects.
Language: Spanish Latin American
Translator: google
Lima - Perú